Clutch and mechanism therefor.



W. H. TSCHANTZ. CLUTCH A'ND MEUHANISM THEREFOB.

APPLIOATION'FILED JULY 24. 1908.

Patented Apr.20, 1909.

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CLUTCH AND- MBGHANISM THEREFOR.

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NITED sTATEs PATENT oEEIoE.

WIIJLIM H. TSCHANTZ, OF ORRVILLE, OHIO, ASSIGNOR TO TE CYCLONE DRILLCOMPANY,

' OF ORRVILLE, OHIO, A CORPORATION OF OHIO.

CLUTCH AND MEGHANISM THEREFOR.

Specification of Letters Patent.

Patented April 20, 1909.

Application iled July 24, 1908.l Serial No. 446,086.A

To all whom, 'it 'may concern:

Be it known that I, VViLLiAM H. TSCHANTZ, a citizen of the UnitedStates, residing at Orrville, in the county of Wayne and State of Ohio,have invented certain new and useful Improvements in Clutches.horizontal section taken on line 1-1, Fig: 3. me

Fig. 2 :is a vertical section taken on 2 2, Fig. 3. Fig. 3 isa face viewof the vdrum or gear wheel, the spider and the expanding segmentsrelatively arranged, and partlyjshown in section as indicated by line 33, Fig. 2. Fig. f1 is a transverse view of the shaft showing theslidable cone mounted thereon, its ring and yoke in proper relationshipwith reference to said parts, parts shown in section as indicated byline Fig. 2. Figs. 5 are detachedv perspective views ofthe differentparts of the clutch proper showing the shaft removed.

Similar numerals of reference indicate corresponding parts in all thefigures bf the drawings.

In the accompanying drawings, 1 represents thel shaft which is properlyjournaled in any suitable bearings, such as 2 and the opposite end ofthe shaft may b e carried and supported as hereinafter described orproperly journaled in the usual manner. Upon the shaft are mounted thedrums or gear Wheels 3, which are practically duplicates, but so far asthe present invention is concerned and its objects one drum or gearwheel is all that is necessary unless it is de-y sired to provide' adouble clutch, which is sometimes desirable, reference being had tospecific and special uses. In the further descriptionof the presentinvention it will be described with reference to a single drum or gearwheel and the different parts pertaining thereto numbered in duplicate,or

' in other words a single clutch and its different parts will bedescribed while two are shown in the drawings.

Upon the shaft 1 is fixedly mounted the spider 4, around which spiderare located the frictional segments 5, which segments are yieldinglytied together by means of the springs 6 and the hooks 7 or theirequivalents, said frictionalsegments when properly arranged are locatedin the chamber of the drum or gear wheel 3 as illustrated in Figs. 1, 2and 3. In the arms 8 of the spider 4 are journaled the cam-bars 9, whichcambars are provided with the angled portions l 10, to which angledportions are attached the levers 11, 'which levers are for the purposeof oscillating the cam-bars 9 as hereinafter described, and for thepurpose pointed 'out. Upon the shaft 1 is slidably and rotatably mountedthe beveled faced head 12, upon which beveled faced head is connected fthe usual segments 13, whichsegments are connected together to producean ordinary 'and common connecting ring, said ring being provided withthe ordinary pins 14:, which pins are for the purpose of providing ameansfor4 operatively connecting the lever-yoke 15. Theseparts so far asthe ring pins and yoke are concerned are common and need no specificdetailed description.

It will be understood that when the beveled faced head 12 ismoved uponthe shaft 1 toward the spider 4f, the free endsv of the levers 11 willbe moved outward or awaye.

from the shaft l by reason of the inner ends of the adjusting screws 16coming in contact with the beveled faces 12a on the head 12. When themovement just above described is imparted to the levers 11, a rocking oroscillating'movement will be imparted to the cam-bars '9, which movementspreads or parts the segments 5, thereby producing frictional Contact asbetween theouter surfaces oftsaid segments and the inner periph- -ery ofthe drum or gear wheel 3, thereby frlctionally coupling the fixedyspider 4c with the loosely mounted drum or gear wheel 3 and causing thedrum or gear wheel 3y to rotate with `the shaft 1. c;

The parts .just above described produce only frlctional contact asbetween the part's sol brought into contact, that is to say the segments5 and the drum 3. It will be understood that in bringing idle portionsof machines into action it 1s of lmportance that this action be gradual,so that there will be no jerkin or quick action; but after the parts arerought 'into action by the 'movements of the clutch members, it isdesirable that a positive connection be made other than frictional, sothatthe transmission of power is not dependent solely upon frictin.

For the purpose of producing a positive connection as between the` partsixed to the shaft 1 and the loosely mounted drum or clutch member 3 thebeveled faced head 12 is rovided with the coupling pins 17, whlchcoupling pins are formed.- of a sufhcient length to be extended throughthe apertures 1'? forined in the spider Lland enteredin the a ertures 22formed in the drum or gear whee 3 and when the pins are entered in theapertures 22the drum or gear wheel 3 will rotate in unison with theparts xed to the shaft 1. I prefer to form the pins 17a of such a lengththat theylwill not as a rule be detached or disconnected from the spiderl.

For the purpose of'providing a yielding reciprocating movement for thepms 17a,

said pins are provided with the reduced inner ends 18, around whichinner ends are located the springs 19, which springs abut against thecross pins 20 or their equivalents, said cross pins being secured to thereduced portions 18; but this specific detailed construction isimmaterial, as the only object is to provide a yielding-movement`to'carry the pins to bring them into proper engagement with theapertures 22 the head 12 isv provided with the non-beveled or straightfaced surface 13a upon which straight faced surface, the set screwslcride without imparting any outward movement to the levers 11. The set'screw 16 should be so adjusted with reference to the levers l1 that whenthey have fully passed the inclined surfaces 12a the proper frictionalcontact will have been made and the head 12' and the drum frictionallyconnected to gether. By providing the straight faced surfaces 13a, asuiiicient movement of the head 12 carrying the pins 17a can be firstmade without moving the frictional segments 5 away from theinnerperiphery of the drum 3, said movement being for the purpose ofdetaching the pins 17a from 'the apertures 22 at which time frictionalconnection is still maintainedv but by a further movement of the head 12the frictional connection is released. v

It will be understoodthat by providing the springs 19 and locating themas shown,

rumV 3 .there the pins 17l will be automatically thrust into theapertures 22 incase or inthe event of any slipping of the frictionalsegments or clutch shoes 5. By providing the pins-17, and the springs 19and forming the apertures 22, a positive clutch is produced by means ofthe engagement ofthe ins with the apertures which engagement 'isautomatically ,accomplished by means of the springs 19.

It will. be understood that as the head 12 approaches/the spider 4, thepins 17" will be carried with such movement and in case the apertures 22do not at iirst register with the pins 17a said pins will be heldagainst movement, but the beveled faced head A'is free to movevuntil thesegments 5 are sufficiently spread to produce frictional contact withreferencey to the drum or gear wheel 3, but the instant the apertures 22landthe ends ofthe pins 17a register the springs 19 will force the pins17a endwise thereby positively coupling or connecting the-drum or gearwheel 3 with the spider 4,'

thus producing a positive connection as well as a frictional-connection.For the,l purpose of insuring positive rotation as between thefrictional segments 5 and the spider 4, said segments are provided withthe recesses 24: into which recesses the flanges 25 are seated as bestillustrated in Fig. 3.

rangement is for the purpose of attaching any desired part to the hubsuch as a crank or power wheel if desire Y Having fully described myinvention what I claim as new and desire to secure by Letters Patent, isl 1. In a clutch of the class described, a shaft having loosely mountedthereon a chambered drum or gear wheel having apertures, a spider fxedlymounted upon said shaft, segments located around the spider, saidsegments located in the chamber of the drum or gear wheel and yieldinglyconnected`together, cam bars carried by the' spider and .located betweenthe spaced ends of the segments, levers connected to the cam bars, saidlevers provided with screws at their f free ends, a beveled headslidably Figs. 1 and 2 one endof the shaft 1 v l isshown located in thehub 23 andthe hub 23 journaled in the bearing 26. This ar` mounted vuponthe shaft, said beveled head Y adapted to actuate the levers connectedto the cam bars, and pms slidably mounted in vthe beveled head'andadapted for engagechambered drum or gear wheel having apertures, aspider xe ly mountedupon said shaft, segments located around the spider,

said segments located in the chamber of the drum 'or gear wheel andyieldingl?)1 connected ther, cam bars carrie y the spider an locatedbetween the spaced ends of the segments, levers connected to the cambars, said levers provided with screws at their free ends, a beveledhead slidably mounted upon the shaft, said beveled head adapted toactuate the levers connected to the cam bars, pins slidably mounted inthe beveled head and adapted for enga ement with .the apertures in thechambere drum or gear wheel, and springs adapted to actuate the pins. l

3. In a clutch of the class described, a shaft having loosely mountedthereon a chambered drum or gear wheel, a spider ixedly mounted'uponsaid shaft, said spider provided with apertures, segments located aroundthe spider and inthe chamber of the drum 0r gear wheel, springs adaptedto yieldingly connect the segments to ether,

, cam bars carried by the spider and ocated between the adjacent endsofthe se ents,

levers connected to the cam bars, a eveled head slidabl mounted upon theshaft, said beveled hea adapted to actuate the levers connectedto thecam bars, land pins carried bythe beveled head and slidably mountedgdtherein, substantially as and for the purpose specified.

4. In a .clutch of the class described, a shaft having loosely mountedthereon a clutch member, a spider ixedly mounted on 35 said shaft,lfriction segments connected to l l the spider to rotate therewith, vcambars located between the friction segments carried by the spider," saidfriction segments adapted for contact with the loosely mounted clutchmember, levers connected to the cam bars, a beveled faced head slidablymounted upon the shaft, pins slidably mounted in said beveled facedhead, said ins located through the spider and adapted or engagement withthe loosely mounted clutch member, and springs adapted to move member,levers connected to the cam bars,- a beveled faced head slidably mountedupon the shaft, pins slidably mounted in said beveled faced head andprovided with cross pins, said ins located through the spider and adaptefor engagement wlth the loosely mounted clutch member, and springsadapted to move the pins when released, substantially as and for the purose s ecied.

In testimony that I c aim t e above, I i

have hereunto subscribed my name in the presence of two witnesses.

. WILLIAM H. TSCHANTZ. Witnesses:

F. W. BOND, SYLvIA BORON.

